1629851157 has 12 divisors (see below), whose sum is σ = 2568250464. Its totient is φ = 987788520.

The previous prime is 1629851117. The next prime is 1629851159. The reversal of 1629851157 is 7511589261.

1629851157 is a `hidden beast` number, since 1 + 629 + 8 + 5 + 1 + 15 + 7 = 666.

It is not a de Polignac number, because 1629851157 - 2¹⁰ = 1629850133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1629851159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8231473 + ... + 8231670.

It is an arithmetic number, because the mean of its divisors is an integer number (214020872).

Almost surely, 2^1629851157 is an apocalyptic number.

It is an amenable number.

1629851157 is a deficient number, since it is larger than the sum of its proper divisors (938399307).

1629851157 is a wasteful number, since it uses less digits than its factorization.

1629851157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16463160 (or 16463157 counting only the distinct ones).

The product of its digits is 151200, while the sum is 45.

The square root of 1629851157 is about 40371.4150978139. The cubic root of 1629851157 is about 1176.8360988976.

The spelling of 1629851157 in words is "one billion, six hundred twenty-nine million, eight hundred fifty-one thousand, one hundred fifty-seven".